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Andrei KvapilandClaude
844deb170f
Add a tenant quota reconciler to cozystack-controller that realises the hierarchical (sub-tree) quota model at runtime. Each tenant's declared quota is the budget for its whole sub-tree: a child that declares its own quota carves a fixed slice out of the parent budget, while a child without a quota shares the parent's remaining pool. The controller maintains a per-namespace 'tenant-quota-allocated' ResourceQuota (Kubernetes enforces the most restrictive quota, so it binds without fighting Flux over the chart-rendered 'tenant-quota'), aggregating sub-tree usage so a pool's members collectively stay within the budget. A --tenant-quota-buffer-percent flag temporarily inflates pool budgets so workloads already over a freshly-introduced quota keep running during rollout; overcommitted pools emit a QuotaOvercommitted event. The model and the selector-spans-namespaces/aggregated-usage approach are adapted from OpenShift's ClusterResourceQuota controllers (openshift/api, library-go, cluster-policy-controller, apiserver-library-go), Apache-2.0, Copyright Red Hat, Inc. and the OpenShift Authors. Co-Authored-By: Claude <noreply@anthropic.com> Signed-off-by: Andrei Kvapil <andrei.kvapil@aenix.io>